Tweak and Maintain Windows 7

You will get everything needed for maintaining Windows 7 in a perfect condition. The program offers tools that take care of the registry, disk space and its defragmentation, installed software, HDD temperature and all sorts of things related to system's health.

Also there are lots of other options helping to boost your system's performance:

Free Version Limitations

The Free version doesn't contain such tools and tweaks as Defragmenter, HDD Monitor, Most Used Tweaks, System Tools and some other. For a full list of the Free version limitations click on the link below:
Pro vs Free Comparison Table